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drm/radeon/si: properly set up the clearstate buffer for pg (v2)

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The format of the clearstate buffer used for pg (powergating)
changed between NI and SI.  This formats it properly for what
the hardware expects on SI.

v2: fix addresses

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2013-08-13 12:48:06 -04:00
parent 090f4b6ad3
commit 59a82d0e65
2 changed files with 142 additions and 36 deletions
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87
drivers/gpu/drm/radeon/evergreen.c
View file

@ -142,6 +142,9 @@ extern void cayman_vm_decode_fault(struct radeon_device *rdev,
u32 status, u32 addr);
void cik_init_cp_pg_table(struct radeon_device *rdev);
extern u32 si_get_csb_size(struct radeon_device *rdev);
extern void si_get_csb_buffer(struct radeon_device *rdev, volatile u32 *buffer);
static const u32 evergreen_golden_registers[] =
{
0x3f90, 0xffff0000, 0xff000000,
@ -3893,7 +3896,7 @@ int sumo_rlc_init(struct radeon_device *rdev)
const u32 *src_ptr;
volatile u32 *dst_ptr;
u32 dws, data, i, j, k, reg_num;
u32 reg_list_num, reg_list_hdr_blk_index, reg_list_blk_index;
u32 reg_list_num, reg_list_hdr_blk_index, reg_list_blk_index = 0;
u64 reg_list_mc_addr;
const struct cs_section_def *cs_data;
int r;
@ -3937,7 +3940,7 @@ int sumo_rlc_init(struct radeon_device *rdev)
dst_ptr = rdev->rlc.sr_ptr;
if (rdev->family >= CHIP_TAHITI) {
/* SI */
for (i = 0; i < dws; i++)
for (i = 0; i < rdev->rlc.reg_list_size; i++)
dst_ptr[i] = src_ptr[i];
} else {
/* ON/LN/TN */
@ -3963,20 +3966,25 @@ int sumo_rlc_init(struct radeon_device *rdev)
if (cs_data) {
/* clear state block */
reg_list_num = 0;
dws = 0;
for (i = 0; cs_data[i].section != NULL; i++) {
for (j = 0; cs_data[i].section[j].extent != NULL; j++) {
reg_list_num++;
dws += cs_data[i].section[j].reg_count;
if (rdev->family >= CHIP_TAHITI) {
rdev->rlc.clear_state_size = si_get_csb_size(rdev);
dws = rdev->rlc.clear_state_size + (256 / 4);
} else {
reg_list_num = 0;
dws = 0;
for (i = 0; cs_data[i].section != NULL; i++) {
for (j = 0; cs_data[i].section[j].extent != NULL; j++) {
reg_list_num++;
dws += cs_data[i].section[j].reg_count;
}
}
reg_list_blk_index = (3 * reg_list_num + 2);
dws += reg_list_blk_index;
rdev->rlc.clear_state_size = dws;
}
reg_list_blk_index = (3 * reg_list_num + 2);
dws += reg_list_blk_index;
rdev->rlc.clear_state_size = dws;
if (rdev->rlc.clear_state_obj == NULL) {
r = radeon_bo_create(rdev, rdev->rlc.clear_state_size * 4, PAGE_SIZE, true,
r = radeon_bo_create(rdev, dws * 4, PAGE_SIZE, true,
RADEON_GEM_DOMAIN_VRAM, NULL, &rdev->rlc.clear_state_obj);
if (r) {
dev_warn(rdev->dev, "(%d) create RLC c bo failed\n", r);
@ -4006,36 +4014,43 @@ int sumo_rlc_init(struct radeon_device *rdev)
}
/* set up the cs buffer */
dst_ptr = rdev->rlc.cs_ptr;
reg_list_hdr_blk_index = 0;
reg_list_mc_addr = rdev->rlc.clear_state_gpu_addr + (reg_list_blk_index * 4);
data = upper_32_bits(reg_list_mc_addr);
dst_ptr[reg_list_hdr_blk_index] = data;
reg_list_hdr_blk_index++;
for (i = 0; cs_data[i].section != NULL; i++) {
for (j = 0; cs_data[i].section[j].extent != NULL; j++) {
reg_num = cs_data[i].section[j].reg_count;
data = reg_list_mc_addr & 0xffffffff;
dst_ptr[reg_list_hdr_blk_index] = data;
reg_list_hdr_blk_index++;
if (rdev->family >= CHIP_TAHITI) {
reg_list_mc_addr = rdev->rlc.clear_state_gpu_addr + 256;
dst_ptr[0] = upper_32_bits(reg_list_mc_addr);
dst_ptr[1] = lower_32_bits(reg_list_mc_addr);
dst_ptr[2] = rdev->rlc.clear_state_size;
si_get_csb_buffer(rdev, &dst_ptr[(256/4)]);
} else {
reg_list_hdr_blk_index = 0;
reg_list_mc_addr = rdev->rlc.clear_state_gpu_addr + (reg_list_blk_index * 4);
data = upper_32_bits(reg_list_mc_addr);
dst_ptr[reg_list_hdr_blk_index] = data;
reg_list_hdr_blk_index++;
for (i = 0; cs_data[i].section != NULL; i++) {
for (j = 0; cs_data[i].section[j].extent != NULL; j++) {
reg_num = cs_data[i].section[j].reg_count;
data = reg_list_mc_addr & 0xffffffff;
dst_ptr[reg_list_hdr_blk_index] = data;
reg_list_hdr_blk_index++;
data = (cs_data[i].section[j].reg_index * 4) & 0xffffffff;
dst_ptr[reg_list_hdr_blk_index] = data;
reg_list_hdr_blk_index++;
data = (cs_data[i].section[j].reg_index * 4) & 0xffffffff;
dst_ptr[reg_list_hdr_blk_index] = data;
reg_list_hdr_blk_index++;
data = 0x08000000 | (reg_num * 4);
dst_ptr[reg_list_hdr_blk_index] = data;
reg_list_hdr_blk_index++;
data = 0x08000000 | (reg_num * 4);
dst_ptr[reg_list_hdr_blk_index] = data;
reg_list_hdr_blk_index++;
for (k = 0; k < reg_num; k++) {
data = cs_data[i].section[j].extent[k];
dst_ptr[reg_list_blk_index + k] = data;
for (k = 0; k < reg_num; k++) {
data = cs_data[i].section[j].extent[k];
dst_ptr[reg_list_blk_index + k] = data;
}
reg_list_mc_addr += reg_num * 4;
reg_list_blk_index += reg_num;
}
reg_list_mc_addr += reg_num * 4;
reg_list_blk_index += reg_num;
}
dst_ptr[reg_list_hdr_blk_index] = RLC_CLEAR_STATE_END_MARKER;
}
dst_ptr[reg_list_hdr_blk_index] = RLC_CLEAR_STATE_END_MARKER;
radeon_bo_kunmap(rdev->rlc.clear_state_obj);
radeon_bo_unreserve(rdev->rlc.clear_state_obj);
}

91
drivers/gpu/drm/radeon/si.c
View file

@ -5286,6 +5286,97 @@ void si_update_pg(struct radeon_device *rdev,
si_enable_gfx_cgpg(rdev, enable);
}
u32 si_get_csb_size(struct radeon_device *rdev)
{
u32 count = 0;
const struct cs_section_def *sect = NULL;
const struct cs_extent_def *ext = NULL;
if (rdev->rlc.cs_data == NULL)
return 0;
/* begin clear state */
count += 2;
/* context control state */
count += 3;
for (sect = rdev->rlc.cs_data; sect->section != NULL; ++sect) {
for (ext = sect->section; ext->extent != NULL; ++ext) {
if (sect->id == SECT_CONTEXT)
count += 2 + ext->reg_count;
else
return 0;
}
}
/* pa_sc_raster_config */
count += 3;
/* end clear state */
count += 2;
/* clear state */
count += 2;
return count;
}
void si_get_csb_buffer(struct radeon_device *rdev, volatile u32 *buffer)
{
u32 count = 0, i;
const struct cs_section_def *sect = NULL;
const struct cs_extent_def *ext = NULL;
if (rdev->rlc.cs_data == NULL)
return;
if (buffer == NULL)
return;
buffer[count++] = PACKET3(PACKET3_PREAMBLE_CNTL, 0);
buffer[count++] = PACKET3_PREAMBLE_BEGIN_CLEAR_STATE;
buffer[count++] = PACKET3(PACKET3_CONTEXT_CONTROL, 1);
buffer[count++] = 0x80000000;
buffer[count++] = 0x80000000;
for (sect = rdev->rlc.cs_data; sect->section != NULL; ++sect) {
for (ext = sect->section; ext->extent != NULL; ++ext) {
if (sect->id == SECT_CONTEXT) {
buffer[count++] = PACKET3(PACKET3_SET_CONTEXT_REG, ext->reg_count);
buffer[count++] = ext->reg_index - 0xa000;
for (i = 0; i < ext->reg_count; i++)
buffer[count++] = ext->extent[i];
} else {
return;
}
}
}
buffer[count++] = PACKET3(PACKET3_SET_CONTEXT_REG, 1);
buffer[count++] = PA_SC_RASTER_CONFIG - PACKET3_SET_CONTEXT_REG_START;
switch (rdev->family) {
case CHIP_TAHITI:
case CHIP_PITCAIRN:
buffer[count++] = 0x2a00126a;
break;
case CHIP_VERDE:
buffer[count++] = 0x0000124a;
break;
case CHIP_OLAND:
buffer[count++] = 0x00000082;
break;
case CHIP_HAINAN:
buffer[count++] = 0x00000000;
break;
default:
buffer[count++] = 0x00000000;
break;
}
buffer[count++] = PACKET3(PACKET3_PREAMBLE_CNTL, 0);
buffer[count++] = PACKET3_PREAMBLE_END_CLEAR_STATE;
buffer[count++] = PACKET3(PACKET3_CLEAR_STATE, 0);
buffer[count++] = 0;
}
static void si_init_pg(struct radeon_device *rdev)
{
if (rdev->pg_flags) {